The present study involves co-precipitation method to grow un-doped and Zr-doped bismuth iron oxide with Xzr =0.10-0.30.......

齿轮强度分析是齿轮设计过程中的重要环节。运用有限元方法先对齿轮进行单一相位的分析，得到齿根的最大主应力，然后提出一种齿轮啮合......